Complexes of cyclic polyaza chelators with cations of alkaline earth metals for enhanced biological activity
申请人:Winchell S. Harry
公开号:US20050112066A1
公开(公告)日:2005-05-26
Cyclic polyaza chelators that possess high affinity and specificity for first transition series metal cations exhibit an unanticipated improvement in biological activity when administered as complexes with cations of the alkaline earth metals, Ca(II) and Mg(II), most notably Ca(II). By virtue of this improvement, these complexes are particularly effective in the treatment of pathological conditions, including ischemia and ischemia-reperfusion injury.
METHOD FOR PRODUCING 3,7-DIMETHYL-7-OCTENOL AND METHOD FOR PRODUCING 3,7-DIMETHYL-7-OCTENYL CARBOXYLATE COMPOUND
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20190194099A1
公开(公告)日:2019-06-27
Methods selectively and efficiently produce 3,7-dimethyl-7-octenol and a carboxylic acid ester thereof. More specifically, a method produces 3,7-dimethyl-7-octenol, including steps of: subjecting a 3-methyl-3-butenyl nucleophilic reagent (2) and a 1,3-dihalo-2-methylpropane compound (3) to a coupling reaction to obtain a 2,6-dimethyl-6-heptenyl halide compound (4); converting the compound (4) into a 2,6-dimethyl-6-heptenyl nucleophilic reagent (5); and subjecting the nucleophilic reagent (5) to an addition reaction with at least one electrophilic reagent selected from the group made of formaldehyde, paraformaldehyde and 1,3,5-trioxane, followed by a hydrolysis reaction to obtain 3,7-dimethyl-7-octenol (6); and the other method.
Processes for preparing haloamines and tertiary aminoalkylorganometallic compounds
申请人:——
公开号:US20010023305A1
公开(公告)日:2001-09-20
Processes for the preparation of haloalkylamines and tertiary aminoalkylorganometallic compounds are disclosed. The haloalkylamines can be prepared by direct reaction of an amine with an &agr;, &ohgr;-dihaloalkane or an &agr;, &ohgr;-dihaloalkene. Tertiary aminoalkylorganometallic compounds can be prepared by reacting selected tertiary haloalkylamines with an alkali metal at a temperature greater than 45° C. in hydrocarbon solvents.
PROCESS FOR PREPARING 6-ISOPROPENYL-3-METHYL-9-DECENYL ACETATE AND INTERMEDIATES THEREOF
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20210323903A1
公开(公告)日:2021-10-21
A process for process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate of the following formula (3), wherein Ac represents an acetyl group, the process comprising steps of: preparing a nucleophilic reagent, 5-isopropenyl-2-methyl-8-nonenyl compound, of the following general formula (1): wherein M
1
represents Li, MgZ
1
, ZnZ
1
, Cu, CuZ
1
, or CuLiZ
1
, wherein Z
1
represents a halogen atom or a 5-isopropenyl-2-methyl-8-nonenyl group, from a 5-isopropenyl-2-methyl-8-nonenyl halide compound of the following general formula (4): wherein X
1
represents a halogen atom; subjecting the nucleophilic reagent (1), 5-isopropenyl-2-methyl-8-nonenyl compound, to an addition reaction with at least one electrophilic reagent selected from the group consisting of formaldehyde, paraformaldehyde, and 1,3,5-trioxane, followed by a hydrolysis reaction to form 6-isopropenyl-3-methyl-9-decenol of the following formula (2); and acetylating 6-isopropenyl-3-methyl-9-decenol (2) to form 6-isopropenyl-3-methyl-9-decenyl acetate (3).